6453385 has 8 divisors (see below), whose sum is σ = 7801416. Its totient is φ = 5124480.

The previous prime is 6453379. The next prime is 6453389. The reversal of 6453385 is 5833546.

It can be written as a sum of positive squares in 4 ways, for example, as 480249 + 5973136 = 693^2 + 2444^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6453385 - 2¹¹ = 6451337 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6453385.

It is not an unprimeable number, because it can be changed into a prime (6453389) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4026 + ... + 5395.

It is an arithmetic number, because the mean of its divisors is an integer number (975177).

Almost surely, 2^6453385 is an apocalyptic number.

It is an amenable number.

6453385 is a deficient number, since it is larger than the sum of its proper divisors (1348031).

6453385 is a wasteful number, since it uses less digits than its factorization.

6453385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9563.

The product of its digits is 43200, while the sum is 34.

The square root of 6453385 is about 2540.3513536517. The cubic root of 6453385 is about 186.1783563014.

The spelling of 6453385 in words is "six million, four hundred fifty-three thousand, three hundred eighty-five".